<template>
  <div class="department-container">
    <div class="app-container">
      <el-card>
        <!-- 用一个行列布局 -->
        <el-row type="flex" justify="space-between" align="middle" style="height: 40px">
          <el-col :span="20">
            <svg-icon icon-class="tree" /><span>江苏传智播客教育科技股份有限公司</span>
          </el-col>
          <el-col :span="4">
            <el-row type="flex" justify="end">
              <!-- 两个内容 -->
              <el-col>负责人</el-col>
              <!-- 下拉菜单 element -->
              <el-col>
                <el-dropdown>
                  <span>
                    操作<i class="el-icon-arrow-down" />
                  </span>
                  <el-dropdown-menu slot="dropdown">
                    <el-dropdown-item @click.native="hidd('')">添加子部门</el-dropdown-item>
                  </el-dropdown-menu>
                </el-dropdown>
              </el-col>
            </el-row>
          </el-col>
        </el-row>
        <el-tree
          :data="list"
          :default-expand-all="true"
        >
          <!-- 作用域插槽 data拿到的是每一个子节点的对象 -->
          <!--
      什么时候用到作用域插槽？父组件中如果想使用子组件中的数据进行自定义内容的渲染 (类似于table 单元格数据渲染)
    -->
          <template #default="{ data }">
            <el-row
              type="flex"
              justify="space-between"
              align="middle"
              style="height: 40px; width: 100%;"
            >
              <el-col :span="20">
                <span> <svg-icon icon-class="user" /><span>{{ data.name }}</span>
                </span></el-col>
              <el-col :span="4">
                <el-row type="flex" justify="end">
                  <!-- 两个内容 -->
                  <el-col>{{ data.manager }}</el-col>
                  <el-col>
                    <!-- 下拉菜单 element -->
                    <el-dropdown>
                      <span> 操作<i class="el-icon-arrow-down" /> </span>
                      <!-- 下拉菜单 -->
                      <el-dropdown-menu slot="dropdown">
                        <el-dropdown-item @click.native="hidd(data.id)">添加子部门</el-dropdown-item>
                        <el-dropdown-item @click.native="edit(data.id)">编辑部门</el-dropdown-item>
                        <el-dropdown-item v-if="data.children.length===0" @click.native="hDel(data.id)">删除部门</el-dropdown-item>
                      </el-dropdown-menu>
                    </el-dropdown>
                  </el-col>
                </el-row>
              </el-col>
            </el-row>
          </template>
        </el-tree>
      </el-card>
    </div>
    <el-dialog
      :title=" isEdit ? '编辑' : '添加'"
      :close-on-click-modal="false"
      :close-on-press-escape="false"
      :visible.sync="showDialog"
      @close="hDialogClose"
    >
      <addor-edit
        ref="deptDialog"
        :origin-list="originList"
        :pid="curId"
        :is-edit="isEdit"
        @close="hClose"
        @update-depart="hUpdateDepart"
      />
    </el-dialog>
  </div>
</template>
<script>
import { tranListToTreeData } from '../../utils/index'
import AddorEdit from './deptDialog.vue'
import { getDepartments, delDepartment } from '../../api/departments'
export default {
  name: 'Departments',
  components: { AddorEdit },
  data() {
    return {
      // 依赖一份树形数据
      // 依赖一份树形数据
      list: [],
      showDialog: false,
      curId: '',
      isEdit: false,
      originList: []
    }
  },
  created() {
    this.loadDepartments()
  },
  methods: {
    // 添加
    hidd(val) {
      this.showDialog = true
      this.isEdit = false
      this.curId = val
    },
    // 删除
    hDel(id) {
      this.$confirm('此操作将永久删除部门, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        // 做删除
        this.doDel(id)
      }).catch(() => {

      })
    },
    async doDel(id) {
      try {
        const res = await delDepartment(id)
        console.log(res)
        // 1. 提示
        this.$message({ type: 'success', message: '删除成功!' })
        // 2. 更新数据
        this.loadDepartments()
      } catch (err) {
        console.log(err)
        this.$message({ type: 'error', message: '删除失败' })
      }
    }, // 收到子组件中的close事件
    // 修改
    edit(val) {
      this.showDialog = true
      this.isEdit = true
      this.curId = val
      this.$nextTick(() => {
        this.$refs.deptDialog.loadDetail()
      })
    },
    // 查询
    async loadDepartments() {
      try {
        const res = await getDepartments()
        console.log(res.data.depts)
        res.data.depts.shift()
        this.originList = res.data.depts.map(item => { return { id: item.id, name: item.name, code: item.code, pid: item.pid } })
        this.list = res.data.depts
        tranListToTreeData(this.list)
      // 后端返回的数据中第一条是公司信息，它应该直接就是tree的根节点
      // 为了后面计算方便，把他直接取出来
      } catch (err) {
        console.log(err)
      }
    },
    // 收到子组件中的update-depart事件
    hUpdateDepart() {
    // 关闭弹层，再次更新数据
      this.showDialog = false
      this.loadDepartments()
    },
    // 子组件点击了取消按钮
    hClose() {
      this.showDialog = false
    },
    // dialog的close事件
    hDialogClose() {
      console.log(this.$refs.deptDialog)
      this.$refs.deptDialog.resetForm()
    }
  }
}
</script>
